GS: HEROMICE #04 THE PERILOUS PLANTS

The Sewer Rats are at it again. This time, they ve created a breed of superplants that are taking over Muskrat City! And what s worse, they ve captured Lady Wonderwhiskers and are holding her prisoner. It s up to Geronimo Superstilton and Swiftpaws to save her and figure out who she really is when she s not a crime-fighting Heromouse!